stubbs



' (No Model.) i 2 sheets -sh eet 1.

.R..A. STUBBS. SEPARATOR.

No. 499,262. Patented Jfin e 13, 189 3.-

(N0 Model.)

2 Sheets-Sheet 2.

.' STUBBS.

SEPARATOR.

Patented June 13 1893.

U fnwsntor:

fittest .m: NORRIS PETERS 00. rno'roumo. WASHINGTON, D4 A1.

A UNITED STATES PATENT OFFICE.

RILEY A. STUBBS, OF GREENVILLE, OHIO, ASSIGNOR OF ONE-HALF TO JOSEPH R. TURNER, OF SAME PLACE.

SEPARATQR.

SPECIFICATION forming part of Letters Patent No. 499,262, dated June 13, 1893.

Application filed September 5,1891. Serial No. 404,839. (No model.)

To aZZ whom it may concern.-

Be it known that I, RILEY A. STUBBS, a citizen of the United States, anda resident of the town of Greenville, in the county of Darke and State of Ohio, have invented certain new and useful Improvements in Separators, of which the following is a specification.

The several features of my invention and the various advantages resulting from their use, conjointly or otherwise, will be apparent from the following description and claims.

In the accompanying drawings, making a part of this specification and to which-reference is hereby made, Figure 1 is a top view of a machine embodying my invention. Fig. 2 is a view of the under side of the cover or top member of the machine, and showing the distributors and the mechanism for operating them. Fig. 2 is a-detail side View,

and Fig. 2 is a top View of one of the dis-' tributers shown in Fig. 2. Figs. 2 and 2 are on an enlarged scale. Fig. 3 is a side elevation of the said machine. Fig. 4 is a vertical central section of the said machine showing the various parts in position. Fig. 5 is a plan view of one of the disk screens. Fig. 5 is a plan view of one segment of disk screen. Fig. 5 is a side elevation of one arm of said segment. Fig. 5 is 'an end elevation of one arm of segment. Fig. 6 is a bottom view of a skeleton wheel frame, employed at one location in my machine, to carry a set of distributers, the distributors not being shown. Fig. 7 is atop View of a disk screen preferably employed as the second one ofthe series belonging to my machine and carrying a collecting spiral. Fig. 8 is the floor of the machine, and showing an expulsive spiral belonging to a disk screen immediately above.

The different parts of the machine embodying my invention are held in position by a suitable framework. The preferable construction of frame consists of four upright square posts A, (Fig. 3,) which are held together near the bottom by four horizontal pieces, as A, and mortised into the upright pieces. The pieces all lie in the same horizontal plane. The upright posts are held together at the top by a square, independent frame (Fig. 1), A A A A composed of four pieces A These pieces A are framed together independently of posts A, and are held to the latter by screws or other suitable means. Within this framework and upheld thereby preferably in a manner hereinafter described, is the screening apparatus, preferably constructed as follows:-The top plate or board B is provided with a central orifice B, for the admission to the screening apparatus of the material to be separated. On the under side of plate B are the distributors B B B B shown in Figs. 2", 2 and 2. Immediately below these is a revolving screen O, as shown in Figs. 4 and 5 Distributors B B B and B are pivotally secured to plate B. A convenient mode of securing these distributors to said plate B is by means of radial strips B the distributers being pivotally fastened to the strips B and the latter fixed to the plate B. All of each series of distributors are connected by rings B 13 ,B and B each of which is continuous. The movement of any particular ring in the line of its periphery will compel all of the series connected to said ring to vibrate in unison. The means for sliding the ring in the direction of its length is preferably as shown in Fig. 2, and is as follows: One of the distributers of each series carries a lug B to which is attached the operating rod extending out beyond the edge of the plate B, in convenient reach for the operator. The rod operating series B is designated by the character 13, that of series B, by B", of series B by B ,and of B by B. The connection of a distributer to a ring is shown in Figs. 2 and 3", in which B is a slotted plate suitably secured to the rod. Through the slot B of plate B passes a pin B firmly secured in the distributer. Thus the motion of the distributer operated by the said rod, is communicated to a ring and that of the ring to the distributors connected thereto. The distributors are preferably slotted to admit the rings. By pulling rod-B to the limit of its movement the whole of the series of distributers B is thrown into the position shown in full lines in Fig. 2 of the drawings. In the same way, the other series are thrown in the positions shown by means of their respective operating rods. By pushing in the rods B B, B and B, to their opposite limit of movement, all the series will be thrown in the position shown in dotted lines in series B It is easily seen that these or any intermediate positions are easily secured by the operator. When desired, each series may be moved independently of the others and in this way the distributers of one series may assume a position different from the other series, as the condition of the material to be separated requires.

Figs. 5, 5", 5 and 5 show the preferable construction of a disk screen 0; said screen is composed of a number of segments 0, each a complete screen in itself. Segments are suitably secured together and to the hub O as by screws C The said hub C is provided with a set screw 0 by means of which the disk 0 is secured to and rotated by a central shaft extending vertically through the machine and driven by suitable mechanism at the top, or bottom. The straight sides of each segment are slotted as indicated by 0 said slots being recesses for the reception of the heads of tacks used in securing bolting or Wire cloth to segment. Each segment of the disk 0 is covered with the same grade of wire or bolting cloth by tacking it to the face of the periphery and hub portions of segment and by turning the cloth over the edges of the radial portions and driving tacks until their heads are within the recesses. The disk C is secured to the vertical shaft, in a horizontal plane just below, and almost in contact with the lower edges of the distributers B [5 ,13 and B When the distributers are set in the position as shown in Fig. 5, the disk C will be. rotated in the direction of the arrow. The material passing down through the orifice B of the plate B falls upon the central portion of the disk shaped screen G and thence by the force communicated to it (said material) moves out from the center of the disk shaped screen toward its circumference. On its way out, it comes into contact with the distributers of the several series. When the distributers are in one position,

namely, that shown in solid lines in Fig. 2 of the drawings, they retard the material to be separated 1n moving toward the periphery of the screen. When they are in the position shown in dotted lines in Fig. 2 of the draw ings, they assist the material being separated 1n 1ts passage over the disk shaped screen toward the periphery of the latter. When found necessary, one or more series may be arranged to retard, while one or more of the series may at the same time hasten the movement of the material toward the periphery. By retarding the material, at any annular point on the disk shaped screen, the capacity of the machine for separating is increased, and it is espe' c ally desirable to retard the material to be separated on that part of the disk shaped screen which is adjacent to its periphery, as it is here that the screen provides the largest surface. A further reason for retarding the material near the periphery of the disk shaped screen is to counteract the increased tendency of the material at such point to more rapidly leave the screen owing to the increased centrifugal force there present.

Attached to the under side of the periphery of the disk shaped screen are several scrapers C, which move in a circumferential trough I), Figs. 4 and 6, formed by the outside wall D of the machine and an annular wall D constituting the inner side or wall of the trough, extending upward near to the lower side of the rim of the screen Without touching it, the bottom being the rim of a stationary skeleton wheel frame upon which the inner wall D is fastened, and gathers up the material thrown therein from the peripheral edge of the disk shaped screen 0 and carries it to the point of exit. This point of exit is usually in the form of a chute D, which carries off the coarsest material which, failing to pass through the screen of the disk 0, has been discharged from off of it into the trough D. The inner wall D of this trough is directly beneath the rim of the diskal screen C so that no material which passes through the screen will fall in the trough and while it approaches near to the rim of the screen it does not touch the same, so the screen will be allowed to freely rotate. The bottom of this trough is formed by the rim of a stationary skeleton wheel frame which is constructed with spokes or radial arms D and this rim. The skeleton wheelframe is fastened stationary on the periphery of its rim to the casing of the machine while at its center is an opening through which the shaft S passes and in which it loosely revolves. Its radial arms, or spokes are suitably fastened at the center with an opening to admit the shaft S. Attached to the lower side of these radial arms or spokes of this skeleton Wheel frame are series of distributers similar in construction and operation to those shown in Fig. 2. The upper side of each arm is sharpened to prevent the material from lodging thereon.

Fig. 7 illustrates a disk shaped. screen E, similar in construction, except the grade of cloth, which is liner, to disk shaped screen 0, and located in a horizontal plane, just underneath and almost touching the lower edges of distributers of skeleton wheel frame D secured by set screw and rotated by shaft S. Connected to and with disk shaped screen E are scrapers E and trough F, similar in construction to trough D.

Immediately underneath and attached to disk screen E is a collecting spiral E, which freely revolves in close proximity to a solid fioor F underneath it and also forming the floor of trough F. This spiral, as it revolves, collects the material which has passed through the disk shaped screen E, and fallen on the floor F, and conveys it to a central orifice F in the floor F. The construction of this floor F is exactly similar to that of the plate B, the central orifice F distributers F underneath and all. Beneath these distributers is located another horizontal disk shaped screen G, (Fig. 4) with construction, location of distributers F above, and attachments to shaft S similar to those above it. It difiers from screen E in that the grade of its cloth is still finer. Connected to and with this'disk shaped screen G are scrapers G a trough H with its discharging spout H, all similar to those above. p

Attached to and revolved by disk shaped screen G is an expelling spiral G, Figs. 4 and 8, the reverse of the preceding spiral E. This spiral revolves freely over and in close proximity to the lowest floor H of the machine, which floor is secured to thesame outside walls as trough H. This spiral collects the material which has fallen through the disk shaped screen G upon the floor H and conveys it from the center outward and discharges it through the opening H in floor H My machine is preferably constructed in four distinct sections, I, J, Kand L, (Fig.'3) each independent of the others. The lower section L consists of bottom floor H and trough H, with disk shapedscreen G and spiral G revolving immediately above them, andwithin outside wall H and outside wall and its connections 11 and H all resting on A of the framework. SectionK consists of floor F with its suspended distributers F and trough F with disk shaped screen Eand spiral E revolving immediately above them, all within outside wall F Section K is suitably secured to posts Aof framework, as by bolts A so as to allow of vertical adjustment of section K. The adjustment is for the pur{ pose of regulating the distance between the disk shaped screen G and dist'ributers F Section J consists of skeleton frame D its distributers D trough D, and disk shaped screen 0 within Wall D similarly attached and adjustable as section K. Section I consists of plate B with its various attachments B to B inclusive. Built onto plate B is a frame B fitting the inside of frame A and secured to it with vertical adjustment by screws A The number of these sections or parts may be varied according to the desired number of grades of the material to-be separated. 7

The mode in which my invention operates is, in general, as follows:-The material ontering the machine through the orifice B,

' falls upon the first screen 0, as much as will pass through the screen (J, the remainder being carried off by means of trough'D and spout D Theamountpassingthroughscreen 0 falls upon screen E, a portion passing through, the residue being. carried oif by trough F and spout F through screen E falls on floor F and is carried byspiral E to centralorifice F 0th" through which it falls on screen G, is distributed over the same by distributersF a portion passing through screen G, the residue being discharged by trough H and spout H. The portion falling through screen Gfalls'on floor H and is collected by spiral G and discharged through orifice H The improve- The portion passing ments hereinbefore described will be found very valuable in separating all ground milling stock and grading and cleaning grain.

While the various features of my invention are preferably employed'together, one or more of them may be used without the remainder, and in so far as applicable one or more of said features may be employed in connection with separating apparatus other than that herein specifically set forth as a whole.

What Ifclaim as new and of my invention, and desire to secure by Letters Patent, is

1. In a separating machine, two or more skeleton segments covered with suitable screening material suitably fastened together and mounted upon a vertical driving shaft and forming by their connection a skeleton segmental wheel substantially as and for the purposes specified.

2. In a separating machine, a rotating screen, one ormore series of distributors, each series pivotally connected to the plate or equivalent portion of the framework above it and also pivotally connected to a ring, and

means for sliding the ring around and changing the angle of the discharge in relation to the rotating of the disks, substantially as and for the purposes specified. v

3. In a separating machine, the rotating screen,and one or more series of distributers, each "series pivotally connected to the, plate or equivalent portion of the framework above it, and also pivotally connected toa ring, one of the distributors being provided with an arm or stud B connected to the reciprocating rod B extended out, within reach of the operator, substantially as and for the purposes specified. 7 l I g 4. In a separating machine, the combination of the rotating screen and the upper plate provided with central orifice B, through which material to be separated passes onto the screen, and having radial strips D and one or more series of distributers, said distributers being pivotally connected to the said strips and to the rings, and means for sliding the rings inthe direction of the strips forward or backward, substantiallyf as and for the purposes specified. I I p 5. In a separating machine, the rotating screen above which is located one or more series of distributors, each 'seriespivotally connected to the radial arms of a skeleton wheel "above it, and also'pivotally connected to a ring which may be reciprocated in the path of its circumference, by mean'ssubstantially as described.

v 6. In a separating machine, one or more series of radial, reversible, distributers permanently pivoted in a horizontal plane to a plate or equivalent portion of the frame work, a suitable distance above a rotatingdiskshaped screen, to allow a suitable'amount of stock on the screen to pass under the distributers, substantially as shown and described. H

7. In a separating machine, a screening or separating wheel, rotating in a horizontal plane by a vertical driving shaft composed of segments suitably fastened together, each of which has a groove, in the outer edges of its radial arms to admit the heads of the tacks fastening suitable screening material with which it is independently clothed, substantially as shown and described.

8. In a separating machine, a skeleton wheel frame formed by radial arms, or spokes and a rim, which is fastened stationary on the periphery of the rim to the casing of the machine and in a central opening of which the shaft loosely revolves substantially as shown and described.

9. In a separating machine,a ring fastened upon the rim of the skeleton Wheel, a suitable distance within its circumference under RILEY A. STUBBS. Attest:

JOSEPH HOLLEHAN, J. W. HALL. 

